Patient characteristics pre- and post merger
| 2014 | 2016 | ||||||
|---|---|---|---|---|---|---|---|
| LCH, n=501 | SBH, n=475 | THH, n=954 | Total, n=1,930 | BHC, n=1,717 | p value | ||
| Age, median (IQR) | 66 (57–76) | 69 (60–75) | 66 (55–74) | 67 (57–75) | 66 (57–74) | p=0.12 | |
| Gender, male, n (%) | 354 (70.7) | 345 (72.6) | 669 (70.1) | 1,368 (70.9) | 1,246 (72.7) | p=0.21 | |
| Cardiac procedures, n (%) | p=0.27 | ||||||
| CABG only | 281 (56.1) | 261 (55.0) | 401 (42.0) | 943 (48.9) | 830 (48.3) | ||
| Valve only | 107 (21.4) | 100 (21.1) | 211 (22.1) | 418 (21.7) | 414 (24.1) | ||
| CABG + valve | 69 (13.8) | 56 (11.8) | 106 (11.1) | 231 (12.0) | 173 (10.1) | ||
| Other | 11 (2.2) | 15 (3.2) | 90 (9.4) | 116 (6.0) | 92 (5.4) | ||
| Valve + other | 19 (3.8) | 22 (4.6) | 110 (11.5) | 151 (7.8) | 46 (8.5) | ||
| CABG + other | 8 (1.6) | 14 (3.0) | 23 (2.4) | 45 (2.3) | 34 (2.0) | ||
| CABG + valve + other | 6 (1.2) | 7 (1.5) | 13 (1.4) | 26 (1.4) | 28 (1.6) | ||
| Urgency of surgery, n (%) | p=0.003 | ||||||
| Elective | 344 (68.7) | 358 (75.4) | 594 (62.3) | 1,296 (67.2) | 1,200 (70.1) | ||
| Urgent | 128 (25.6) | 107 (22.5) | 309 (32.4) | 544 (28.2) | 419 (24.5) | ||
| Emergency | 20 (4.0) | 6 (1.3) | 41 (4.3) | 67 (3.5) | 84 (4.9) | ||
| Salvage | 9 (1.8) | 4 (0.8) | 10 (1.1) | 23 (1.2) | 10 (0.6) | ||
| EuroSCORE, median (IQR) | 0.035 (0.018–0.082) | 0.036 (0.021–0.079) | 0.037 (0.021–0.070) | 0.037 (0.020–0.075) | 0.035 (0.017–0.068) | p=0.46 | |
| Preoperative Hb, median (IQR) | 131 (118–144) | 136 (125–148) | 135 (123–146) | 134 (121–145) | 134 (121–144) | p=0.49 | |
BHC = Barts Heart Centre; CABG = coronary artery bypass graft; EuroSCORE = European System for Cardiac Operative Risk Evaluation; Hb = haemoglobin; IQR = interquartile range; LCH = London Chest Hospital; SBH = St Bartholomew’s Hospital; THH = the Heart Hospital.